Precision of Geocoded Locations and Network Distance Estimates
This paper addresses the accuracy of the geocoding of travel diaries, the relationships between different network-based distance estimates, and how exact estimates are when distances are self-reported. Three large-scale surveys in Norway and Switzerland demonstrate that very high precision is possible when survey protocol emphasizes the capture of addresses. The study uses the relevant and available databases and networks. Crow-fly, shortest distance path, shortest time path, and mean user equilibrium path distances are systematically related to each other, the pattern of their relationships is matched to theoretical expectations, and the impact of network resolution is reported. In the examples studied, medians of self-reported distances by distance band provide reasonable estimates of crow-fly and shortest distance path distances.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/37387952
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Authors:
- Chalasani, V S
- Denstadli, J M
- Engebretsen, O
- Axhausen, Kay W
- Publication Date: 2005
Language
- English
Media Info
- Media Type: Print
- Features: Figures; References; Tables;
- Pagination: pp 1-15
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Serial:
- Journal of Transportation and Statistics
- Volume: 8
- Issue Number: 2
- Publisher: Research and Innovative Technology Administration
- ISSN: 1094-8848
- Serial URL: http://www.bts.gov/publications/journal_of_transportation_and_statistics/
Subject/Index Terms
- TRT Terms: Accuracy; Distance; Distance measuring equipment; Geographic information systems; Travel behavior; Travel diaries; Travel surveys; Trip length
- Identifier Terms: Norwegian National Passenger Travel Survey; Swiss National Travel Survey
- Uncontrolled Terms: Network models; User equilibrium
- Subject Areas: Highways; Planning and Forecasting; I72: Traffic and Transport Planning;
Filing Info
- Accession Number: 01022781
- Record Type: Publication
- Files: TRIS
- Created Date: Apr 13 2006 2:59PM